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PCE
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DIFF Main Group
F21H 1/00

Incandescent mantles; Selection of imbibition liquids therefor

Introduced: September 1968

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • F21H 1/02 characterised by the material thereof IPC+CPC Available in IPC and CPC
  • F21H 1/04 CPC only CPC only